Home / 13,876.06-20,814.05-4,991.37

Finding the Fourth Proportional to 13,876.06, 20,814.05 and 4,991.37

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Solution

The fourth proportional to 13,876.06, 20,814.05 and 4,991.37 is: 7,487.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,876.06 : 20,814.05 = 4,991.37 : x
  2. Step 2: Convert to fraction form
    13,876.06/20,814.05 = 4,991.37/x
  3. Step 3: Cross multiply
    13,876.06x = 20,814.05 × 4,991.37
  4. Step 4: Simplify right side
    13,876.06x = 103,890,677.84
  5. Step 5: Solve for x
    x = 103,890,677.84/13,876.06
  6. Step 6: Final answer
    x = 7,487.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.